4. The property of H2 O that allows Na+ and Cl- to dissolve in water is...
4. The property of H2 O that allows Na+ and Cl- to dissolve in water is a) insolubility, b) dehydration synthesis, c) selectively permeable d) polarity, e) diffusion.
Homework Answers
In this case, the property that allows water to dissolve salt is the polarity. Remember that salt is composed by positive ions of Na bonded to negative ions of Cl. Thanks to the positive charge of the water, the negative ion of Cl will be attracted. On the other hand, the positive charge of water will attract the positive Na, making possible to dissolve salt. So the correct answer is d) polarity
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4. The property of H2 O that allows Na+
and Cl- to dissolve in water is...
what property of water allows it to dissolve ionic solids?
what property of water allows it to dissolve ionic solids?
Why does salt dissolve in water? A. The positive charges of sodium (Na) and the negative...
Why does salt dissolve in water? A. The positive charges of sodium (Na) and the negative charges of chloride (Cl) interact with water molecules B. The NaCl molecules form covalent bonds with the surrounding water molecules C. The water molecules are attracted to the nonpolar bonds of the sodium and chloride ions D. The ionic bond between the sodium ion and chloride ion is strong E. None of the above
Of: a) NA as the site s eukaryotic cells become more specialized, the nucleus is NOT important sy...
PLEASE ANSWER ALL
of: a) NA as the site s eukaryotic cells become more specialized, the nucleus is NOT important synthesis. b) Changes in the regulation of genes, c) DNA mutation, d) synthesis of mRNA, e) Golgi apparatus synthesis 4. Which of the following is associated with Co-enzyme A by the membrane of the mitochondrion for use in the Krebs cycle? a) proteins, b) amino acids, c) fatty acids, d) pyruvate e) glycogen 5. Which is NOT a characteristic of...
A model cell contains the intracellular ions Na+, K+, Cl-, and An- (impermeant anions) and the...
A model cell contains the intracellular ions Na+, K+, Cl-, and An- (impermeant anions) and the extracellular ions Na+, K+, and Cl-. The concentration (activities) of [Na+]o=125 mmol l-1, [K+]o = 5 mmol l-1, whereas [An-]i = 123 mmol l-1, [K+]i= 112 mmol l-1. Assume the membrane is permeable to Na+, K+, and Cl-. [ The subscripts i and o refer to inside and outside, respectively]. The relative permeabilities for the ions are pNa/pK=0.02, pCl/pK=0.1 a) What are the values...
I add 2.0 moles of Na+Cl- to 1 liter of water. How many osmoles are in...
I add 2.0 moles of Na+Cl- to 1 liter of water. How many osmoles are in this solution? A. 2 OSMOLES B. 1/2 OSMOLES C. 2.1 OSMOLES D. 4 OSMOLES
I add 2.0 moles of Na+Cl- to 1 liter of water. What is the Molarity of...
I add 2.0 moles of Na+Cl- to 1 liter of water. What is the Molarity of the solution I have created? (The unit for molarity is "M") A. 2 M B. 1/2 M C. 2.1 M D.4 M
what property allows the leading strand of the replication fork to proceed more rapidly than the...
what property allows the leading strand of the
replication fork to proceed more rapidly than the lagging
strand?
A) the DNA unwinds more rapidly
B) fewer nucleosomes to remove
C)greater helices activity
D) polarity of the template DNA
QUESTION 39 What property allows the leading strand of the replication fork to proceed more rapidly than the lagging strand? le DNA unwinds more rapidly fewer nucleosomes to remove greater helicase activity polarity of the template DNA
Give the orbital diagram for an atom of a) Na b) O c) Co d) Cl
Give the orbital diagram for an atom of a) Na b) O c) Co d) Cl
Enzymes are important to biology because they can be used to Select one: O a. Control...
Enzymes are important to biology because they can be used to Select one: O a. Control when chemical reactions happen O b. Control where chemical reactions occur O c. Link different chemical reactions O d. Couple ATP hydrolysis to activity O e. All of the above Diffusion is the movement of solute propelled by collisions with water. Diffusion spontaneously transforms energy concentration gradients into energy equilibrium conditions just like any other spontaneous reaction. Select one: O a. high; high O...
Which of the following metals will dissolve in HCl? A. Al B. Ba C. Na D....
Which of the following metals will dissolve in HCl? A. Al B. Ba C. Na D. Mn E. all of the above
PLEASE ANSWER ALL
of: a) NA as the site s eukaryotic cells become more specialized, the nucleus is NOT important synthesis. b) Changes in the regulation of genes, c) DNA mutation, d) synthesis of mRNA, e) Golgi apparatus synthesis 4. Which of the following is associated with Co-enzyme A by the membrane of the mitochondrion for use in the Krebs cycle? a) proteins, b) amino acids, c) fatty acids, d) pyruvate e) glycogen 5. Which is NOT a characteristic of...
what property allows the leading strand of the
replication fork to proceed more rapidly than the lagging
strand?
A) the DNA unwinds more rapidly
B) fewer nucleosomes to remove
C)greater helices activity
D) polarity of the template DNA
QUESTION 39 What property allows the leading strand of the replication fork to proceed more rapidly than the lagging strand? le DNA unwinds more rapidly fewer nucleosomes to remove greater helicase activity polarity of the template DNA
Enzymes are important to biology because they can be used to Select one: O a. Control when chemical reactions happen O b. Control where chemical reactions occur O c. Link different chemical reactions O d. Couple ATP hydrolysis to activity O e. All of the above Diffusion is the movement of solute propelled by collisions with water. Diffusion spontaneously transforms energy concentration gradients into energy equilibrium conditions just like any other spontaneous reaction. Select one: O a. high; high O...
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